Siemens QJ3H175 175A 3-Pole 240 V Circuit Breaker

Meet the Siemens QJ3H175 — a robust 175 A, 3-pole, 240 V circuit breaker designed to safeguard 3-phase power in commercial and light-industrial environments. Built by Siemens, this unit delivers dependable overcurrent protection, enabling quick, safe fault isolation and simplified integration into compatible Siemens panels and distribution equipment.

• Exact spec clarity: Current rating 175 A, Poles: 3, Voltage rating: 240 V, Part Number: QJ3H175.
• Three-pole protection ensures all phases disconnect together, helping prevent unbalanced faults and reducing damage to connected motors and equipment.
• Industry-standard compatibility designed to fit Siemens QJ-series panels, MCCs, and switchgear, facilitating straightforward replacement or upgrade in existing installations.
• Durable Siemens engineering crafted for reliability in busy electrical spaces, delivering consistent performance with long service life under typical commercial and light-industrial conditions.
• Clear, practical protection ideal for feeders to large loads such as motors, pumps, and HVAC equipment, where dependable disconnection at fault is crucial for safety and uptime.

This QJ3H175 circuit breaker answers real maintenance and safety needs: it provides dependable overcurrent protection for 3-phase circuits, helps minimize downtime by quickly isolating faults, and supports organized, scalable distribution in spaces like warehouses, manufacturing floors, and commercial facilities. Whether you’re upgrading aging gear or stocking a replacement part for ongoing maintenance, the Siemens QJ3H175 offers a precise fit and trusted performance in Siemens-equipped electrical systems.

Use cases and scenarios

• Primary protection for 3-phase feeders in a Siemens panelboard or switchgear assembly.
• Replacement for worn or failing breakers in QJ-series electrical installations.
• Protection for motors, pumps, and HVAC circuits in commercial and light-industrial environments.
• Critical backup protection for service entrances or distribution boards requiring a dedicated 3-pole, 240 V solution.

Specifications at a glance

• Part Number: QJ3H175
• Current Rating: 175 A
• Poles: 3
• Voltage Rating: 240 V
• Type: Circuit Breaker (3-pole, for 3-phase systems)

Ready to protect your 3-phase distribution with a trusted Siemens solution? The Siemens QJ3H175 is the dependable choice for precise, durable overcurrent protection in compatible panels and enclosures. Add it to your cart to secure reliable, easy-to-maintain electrical protection today.